Preparation method of slow-release synergistic coated fertilizer

A technology of coating film and fertilizer, which is applied in the field of preparation of slow-release and synergistic coated film fertilizer, can solve the problems of less than 10%, low fertilizer utilization rate, decreased economic benefit, etc. The effect of improving utilization

Inactive Publication Date: 2021-10-29
青岛硕远硅胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In concentrated vegetable, fruit and vegetable production areas with a relatively high degree of intensification, the utilization rate of nitrogen and phosphorus fertilizers is even less than 10%. The lower fertilizer utilization rate not only means the increase of agricultural production costs and the decline of economic benefits, but also means the loss of resources and energy. Huge waste and serious pollution to the environment
In addition, during the growth process of plants, diseases and insect pests often occur, resulting in reduced production and other situations, affecting the increase in crop production and harvest.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method of sustained-release efficiency clad film fertilizers, the preparation method of the fertilizer sustained release rate encapsulating film is as follows:

[0020] The first step, the formulation of an epoxy reagent: the organic acid carbonate is an oxygen preamble, the hydrogen oxygen is oxygen donor; takes a quantity of formic acid, concentrated sulfuric acid and hydrogenly hydrogen in the container, stir well the resulting mixed solution, will be obtained The mixture is low temperature and prevents light sealing;

[0021] In the second step, the synthesis of epoxy soybean oil: 100ml soybean oil is added to the three flasks, open the magnetic stirrer, and heat the water bath, add 5 ml of epoxy reagent to the dropping funnel, open the drip funnel, so that epoxy reagents Add to the three flasks, after 1 h, the sodium carbonate solution was added to the three flask, and the reaction was terminated, and the resulting product was washed to neutral, distilled under reduc...

Embodiment 2

[0031] A method of sustained-release efficiency clad film fertilizers, the preparation method of the fertilizer sustained release rate encapsulating film is as follows:

[0032] The first step, the formulation of an epoxy reagent: the organic acid carbonate is an oxygen preamble, the hydrogen oxygen is oxygen donor; takes a quantity of formic acid, concentrated sulfuric acid and hydrogenly hydrogen in the container, stir well the resulting mixed solution, will be obtained The mixture is low temperature and prevents light sealing;

[0033] In the second step, the synthesis of epoxy soybean oil: add 300ml soybean oil to the three flasks, open the magnetic stirrer, heat the water bath, add 15 ml of epoxy reagent to the drip funnel, open the drip funnel, so that epoxy reagents The addition of the three flasks was added. After 6 h, the sodium carbonate solution was added to the three flasks, terminate the reaction, and the resulting product was washed to neutral, distilled under reduce...

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PUM

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Abstract

The invention discloses a preparation method of a fertilizer slow-release synergistic coating film. The preparation method comprises the following steps: 1, preparing an epoxy reagent; 2, synthesizing epoxidized soybean oil; 3, preparing an epoxidized soybean oil polyhydric alcohol oligomer; 4, uniformly coating the fertilizer and the epoxidized soybean oil polyhydric alcohol oligomer by using a disc granulator; and 5, spraying an insecticide into the coated fertilizer obtained in the step 4, and drying. According to the obtained slow-release synergistic coated fertilizer, the fertilizer consumption can be reduced, and the utilization rate is increased; the fertilizer can be matched with a quick-acting fertilizer to serve as a base fertilizer for one-time application, fertilization labor is reduced, application is safe, and fertilizer damage is prevented; after application, the fertilizer efficiency is stable and long, force loss is avoided in the later period, the coated film fertilizer contains the insecticide, pests in soil can be killed, and then the purpose of increasing both production and income is achieved.

Description

Technical field [0001] The present invention relates to the field of soil fertilizer technology, in particular a method of sustained-release efficiency enveloping membrane fertilizer. Background technique [0002] Plant growth development requires a large number of nutrients, of which nitrogen phosphorus potassium fertilizer has played a huge role in promoting high yield of agriculture. In these three nutrient elements, the particularity of the two elements of nitrogen and phosphors in the soil and the blind application of fertilizers are highlighted, and the fertilizer utilization is very low. At present, there are only 27.5%, 11.6% and 31.5, and only 27.5%, 11.6% and 31.5, respectively, of China's three major food crops. In the concentration of vegetable fruit and vegetables, the utilization of nitrogen phosphorus fertilizer is less than 10% in the intensive level, but the lower fertilizer utilization not only means the increase in agricultural production costs and the decline ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/40C05G3/60C05G5/12C05G5/30B01F3/08B01F13/08B01J19/18C07C67/31C07C69/708
CPCC05G3/00C05G3/40C05G3/60C05G5/12C05G5/30C05C9/00C05B7/00B01J19/18C07C67/31C07C69/708C05D1/02
Inventor 刘增强
Owner 青岛硕远硅胶科技有限公司
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